# Energy Conservation and Waste Heat Recovery

- Institution: IIT Kharagpur
- Department: Mechanical Engineering
- Taught by: Prof. Prasanta Kumar Das, Prof. A Bhattacharya
- Level: Undergraduate
- Language: English
- Subjects: Engineering
- Source: [NPTEL](https://nptel.ac.in/courses/112105221)
- Licence: [CC BY-NC-SA](https://nptel.ac.in/faq) (Non-commercial use only.)
- Syllabus: [at the source](https://nptel.ac.in/courses/112105221)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Estimates from analyses and audits from various industries suggest that 20 to 50% of industrial energy input is lost as waste heat. This waste heat can be in the form of hot exhaust gases, water/fluid streams (from condensers in power plants) or heat lost from hot equipment and surfaces. As the world strives for higher energy efficiencies, it is imperative that along with better equipment we focus on recovering the energy stored in this “waste heat” and utilize it for useful purposes.The proposed course introduces us to various methods of Waste Heat Recovery that has been employed by the industry to harness the energy stored in waste heat and use it for generation of additional electric power.

INTENDED AUDIENCE :Energy Science and Engineering,Mechanical Engineering, Electrical Engineering students

PRE-REQUISITES : Basic Thermodynamics

INDUSTRY SUPPORT : BHEL,NTPC,CESC,WBSEB,DVC and other power companies, GE,Siemens,Alstom

## Lectures

1. [Lecture 1: Introduction to waste heat recovery](https://invisiblenetwork.ai/learn/nptel/112105221/cd8dccf982e5) (YouTube)
2. [Lecture 2: Introduction to waste heat recovery (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/7267e69d564d) (YouTube)
3. [Lecture 3: Introduction to waste heat recovery (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/0cfcec0579f2) (YouTube)
4. [Lecture 4: Introduction to waste heat recovery (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/d60ba842fab2) (YouTube)
5. [Lecture 5: Thermodynamic principles of waste heat recovery](https://invisiblenetwork.ai/learn/nptel/112105221/ce6b88c7cbae) (YouTube)
6. [Lecture 6: Thermodynamic principles of waste heat recovery (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/0f79387c6fbf) (YouTube)
7. [Lecture 7: Thermodynamic principles of waste heat recovery (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/d06f9ac4edd2) (YouTube)
8. [Lecture 8: Thermodynamic principles of waste heat recovery (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/71b7390af75d) (YouTube)
9. [Lecture 9 : Reversible Cycles](https://invisiblenetwork.ai/learn/nptel/112105221/ba3e427265b8) (YouTube)
10. [Lecture 10 : Reversible Cycles cont.](https://invisiblenetwork.ai/learn/nptel/112105221/1dc603c79b9b) (YouTube)
11. [Lecture 11 : Entropy](https://invisiblenetwork.ai/learn/nptel/112105221/21c3afce3701) (YouTube)
12. [Lecture 12 : Entropy (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/dd91300c311c) (YouTube)
13. [Lecture 13 : Entropy (Contd.), Exergy](https://invisiblenetwork.ai/learn/nptel/112105221/55100af10eb9) (YouTube)
14. [Lecture 14 : Exergy, Second Law efficiency](https://invisiblenetwork.ai/learn/nptel/112105221/1a58ce648685) (YouTube)
15. [Lecture 15 : Second Law efficiency (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/a7f688177fd2) (YouTube)
16. [Lecture 16: Recapitulation of common power cycles](https://invisiblenetwork.ai/learn/nptel/112105221/1c89b9240646) (YouTube)
17. [Lecture 17: Recapitulation of common power cycles cont.](https://invisiblenetwork.ai/learn/nptel/112105221/683f4e685139) (YouTube)
18. [Lecture 18: Recapitulation of common power cycles cont.](https://invisiblenetwork.ai/learn/nptel/112105221/cac8c1da45f3) (YouTube)
19. [Lecture 19: Recapitulation of common power cycles cont.](https://invisiblenetwork.ai/learn/nptel/112105221/6d0f2c45dc46) (YouTube)
20. [Lecture 20: Recapitulation of common power cycles cont.](https://invisiblenetwork.ai/learn/nptel/112105221/156a540305c7) (YouTube)
21. [Lecture 21: Recapitulation of common power cycles cont.](https://invisiblenetwork.ai/learn/nptel/112105221/6786a3c425b1) (YouTube)
22. [Lecture 22: Gas Turbine cycle](https://invisiblenetwork.ai/learn/nptel/112105221/2c82b3970bbe) (YouTube)
23. [Lecture 23: Combined cycle](https://invisiblenetwork.ai/learn/nptel/112105221/4e8be5b7a70e) (YouTube)
24. [Lecture 24: Combined cycle cont.](https://invisiblenetwork.ai/learn/nptel/112105221/c82502d52ae3) (YouTube)
25. [Lecture 25: Combined Cycle contd.](https://invisiblenetwork.ai/learn/nptel/112105221/2d28f7f4315f) (YouTube)
26. [Lecture 26: Heat recovery steam generator](https://invisiblenetwork.ai/learn/nptel/112105221/b631cd68f564) (YouTube)
27. [Lecture 27 : Thermodynamic cycles for low temperature application](https://invisiblenetwork.ai/learn/nptel/112105221/f6176198d87b) (YouTube)
28. [Lecture 28: Thermodynamic cycles for low temperature application (Contd.), Cogeneration](https://invisiblenetwork.ai/learn/nptel/112105221/320144f72bce) (YouTube)
29. [Lecture 29 : Heat exchanger](https://invisiblenetwork.ai/learn/nptel/112105221/783a3db622fc) (YouTube)
30. [Lecture 30 : Heat exchanger (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/f86d3934d578) (YouTube)
31. [Lecture 31 : Heat exchanger (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/9c12f8bbd30e) (YouTube)
32. [Lecture 32 : Heat exchanger (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/8b42626791a0) (YouTube)
33. [Lecture 33 : Heat exchanger (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/c5629d53ed62) (YouTube)
34. [Lecture 34 : Heat Exchanger Network (HEN)](https://invisiblenetwork.ai/learn/nptel/112105221/853f993fb7ae) (YouTube)
35. [Lecture 35 : Heat Exchanger Network (HEN) (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/aa42d82d9237) (YouTube)
36. [Lecture 36 : Heat Exchanger Network (HEN) (Contd.)](https://invisiblenetwork.ai/learn/nptel/112105221/682bb597e4a8) (YouTube)
37. [Lecture 37 : Heat Pipe - Part I](https://invisiblenetwork.ai/learn/nptel/112105221/b4ce10139a6c) (YouTube)
38. [Lecture 38 : Heat Pipe - Part II](https://invisiblenetwork.ai/learn/nptel/112105221/5a7241851980) (YouTube)
39. [Lecture 39 : Heat Pipe - Part III](https://invisiblenetwork.ai/learn/nptel/112105221/d8030565ba26) (YouTube)
40. [Lecture 40 : Direct Conversion - Introduction to TEG](https://invisiblenetwork.ai/learn/nptel/112105221/e69cde1873e5) (YouTube)
41. [Lecture 41 : Thermoelectric Generators - Functioning and Applications](https://invisiblenetwork.ai/learn/nptel/112105221/a9745d96e443) (YouTube)
42. [Lecture 42: TEG – performance analysis](https://invisiblenetwork.ai/learn/nptel/112105221/855529087444) (YouTube)
43. [Lecture 43: TEG – performance optimization](https://invisiblenetwork.ai/learn/nptel/112105221/77900df26c05) (YouTube)
44. [Lecture 44: Direct Conversion – Magneto Hydro dynamics (MHD)](https://invisiblenetwork.ai/learn/nptel/112105221/2f845a0127b3) (YouTube)
45. [Lecture 45: Direct Conversion – Thermo-Ionic generation](https://invisiblenetwork.ai/learn/nptel/112105221/a5b5c7bb3fad) (YouTube)
46. [Lecture 46: Direct Conversion – Thermo Photo Voltaic generation (TPV)](https://invisiblenetwork.ai/learn/nptel/112105221/831a8de5fa26) (YouTube)
47. [Lecture 47: Heat Pumps – I](https://invisiblenetwork.ai/learn/nptel/112105221/f98d0c43b40b) (YouTube)
48. [Lecture 48: Heat Pumps – II](https://invisiblenetwork.ai/learn/nptel/112105221/1e1015669229) (YouTube)
49. [Lecture 49: Heat Pumps – III](https://invisiblenetwork.ai/learn/nptel/112105221/bca115c76f9b) (YouTube)
50. [Lecture 50: Waste Heat Recovery from Incinerator Plants](https://invisiblenetwork.ai/learn/nptel/112105221/916af407d02b) (YouTube)
51. [Lecture 51: Energy Storage Systems - I](https://invisiblenetwork.ai/learn/nptel/112105221/0afcdaf3c015) (YouTube)
52. [Lecture 52 : Energy Storage Systems – II](https://invisiblenetwork.ai/learn/nptel/112105221/d7e220b10a77) (YouTube)
53. [Lecture 53 : Energy Storage Systems – III](https://invisiblenetwork.ai/learn/nptel/112105221/a8142a69f1a0) (YouTube)
54. [Lecture 54 : Energy Storage Systems – IV](https://invisiblenetwork.ai/learn/nptel/112105221/735313afe162) (YouTube)
55. [Lecture 55 : Energy Storage Systems – V](https://invisiblenetwork.ai/learn/nptel/112105221/a449d978e8ad) (YouTube)
56. [Lecture 56 : Energy Storage Systems – VI](https://invisiblenetwork.ai/learn/nptel/112105221/97ffaa8f057b) (YouTube)
57. [Lecture 57: Energy Storage Systems – VII](https://invisiblenetwork.ai/learn/nptel/112105221/79a3ef828a66) (YouTube)
58. [Lecture 58: Energy Storage Systems – VIII](https://invisiblenetwork.ai/learn/nptel/112105221/f1340a636df9) (YouTube)
59. [Lecture 59: Energy Storage Systems – IX](https://invisiblenetwork.ai/learn/nptel/112105221/d417c18e42e7) (YouTube)
60. [Lecture 60: Hydrogen Economy](https://invisiblenetwork.ai/learn/nptel/112105221/24cf3cae97fa) (YouTube)
61. [Lecture 61: Fuel Cells](https://invisiblenetwork.ai/learn/nptel/112105221/4c5b8b23da12) (YouTube)
62. [Lecture 62: Energy Economics – I](https://invisiblenetwork.ai/learn/nptel/112105221/6c07fa9e2e57) (YouTube)
63. [Lecture 63: Energy Economics – II](https://invisiblenetwork.ai/learn/nptel/112105221/846980fb0155) (YouTube)
64. [Lecture 64: Energy Economics – III](https://invisiblenetwork.ai/learn/nptel/112105221/2de30c59b57c) (YouTube)
65. [Lecture 65: Energy Economics – IV](https://invisiblenetwork.ai/learn/nptel/112105221/8f6e94186e46) (YouTube)
66. [Lecture 66: Energy Economics – V](https://invisiblenetwork.ai/learn/nptel/112105221/179f8b6385a3) (YouTube)
67. [Lecture 67: Course Wrap – Up](https://invisiblenetwork.ai/learn/nptel/112105221/c4608eac85e0) (YouTube)